The Role of the Geometric Factor in Skeletal Rearrangements of Neohexane on Low-Index Surfaces of Ni and Pt Catalysts

1992 ◽  
Vol 57 (9) ◽  
pp. 1785-1792 ◽  
Author(s):  
Vladimír Hejtmánek
Keyword(s):  
Point Of View ◽  
Geometric Factor ◽  
Pt Catalysts ◽  
Surface Character ◽  
Skeletal Rearrangements

The steric demands of two types of adsorbed complexes of neohexane (2,2-dimethylbutane) on (100), (110) and (111) ideal surfaces of Ni or Pt catalysts were investigated with the aid of a computer. It was shown, that αγ complexes of the adsorbed noehexane were preferred in comparison to αβ ones for all studied surfaces. From the steric point of view, the feasibility of the adsorption depends on the complexity of the surface character in the following order: (111) < (100) < (110). Unfortunately, the experimentally observed discrepancies between the activity or selectivity in skeletal reactions on both types of catalysts could not be elucidated from our analyses.

Geometric Factor in Skeletal Reactions of 2-Methylpentane on Stepped Surfaces of Platinum Catalyst

1992 ◽  
Vol 57 (10) ◽  
pp. 2012-2020
Author(s):  
Vladimír Hejtmánek
Keyword(s):  
Active Sites ◽  
Platinum Catalyst ◽  
Point Of View ◽  
Geometric Factor ◽  
Published Data ◽  
Stepped Surfaces ◽  
Geometric Conditions ◽  
Surface Intermediates ◽  
Isomerization Mechanism

The role of geometric factor in the course of skeletal reactions (isomerization, hydrogenolysis) of 2-methylpentane on stepped (119), (557) and reconstructed R(557) surfaces of single crystals of platinum was evaluated with computer designed models. These calculations were compared with reported experimental data. It was found by analysis of geometric conditions that there are accessible active ensembles on double step of the reconstructed R(557) surface. In addition, these active sites are unsaturated in their coordination sphere and thus catalytically effective. This finding is consistent with published data, confirming higher catalytic activity of this surface. The various pathways of Bond Shift isomerization mechanism of 2-methylpentane from the point of view of steric demands of surface intermediates on differently located ensembles are discussed, too.

Elucidation of block boundaries as the dissolution channels in hydrated cement

1978 ◽  
Vol 36 (1) ◽  
pp. 484-485
Author(s):  
N.V. Belov ◽  
U.I. Papiashwili ◽  
B.E. Yudovich
Keyword(s):  
Liquid Phase ◽  
Grain Boundaries ◽  
Benzoyl Peroxide ◽  
Phase Contrast ◽  
Active Role ◽  
Point Of View ◽  
Hardened Cement ◽  
Hydrated Cement ◽  
Hardened Cement Paste

It has been almost universally adopted that dissolution of solids proceeds with development of uniform, continuous frontiers of reaction.However this point of view is doubtful / 1 /. E.g. we have proved the active role of the block (grain) boundaries in the main phases of cement, these boundaries being the areas of hydrate phases' nucleation / 2 /. It has brought to the supposition that the dissolution frontier of cement particles in water is discrete. It seems also probable that the dissolution proceeds through the channels, which serve both for the liquid phase movement and for the drainage of the incongruant solution products. These channels can be appeared along the block boundaries.In order to demonsrate it, we have offered the method of phase-contrast impregnation of the hardened cement paste with the solution of methyl metacrylahe and benzoyl peroxide. The viscosity of this solution is equal to that of water.

Whatever Happened to the Cambridge Capital Theory Controversies? (With comments by L. Pasinetti, F. Fisher, J. Felipe and J. McCombie, R. Greenfield and reply by the authors)

2009 ◽  
pp. 4-27
Author(s):  
A. Cohen ◽  
G. Harcourt
Keyword(s):  
Economic Theory ◽  
Economic Thought ◽  
Point Of View ◽  
Chronological Order ◽  
Capital Theory

The article written by the well-known theorists and historians of economic thought contains a detailed overview of the Cambridge capital controversy, which had raged from the mid-1950-s through the mid-1970-s. The authors track the origins of the controversy and cover arguments of both sides in chronological order. From their point of view, the discussion hasnt been resolved, and its main underlying aspects were ideological beliefs and fundamental methodological controversies on the nature of equilibrium and on the role of time in economic theory. The article is published with comments written by other leading theoreticians.

УКРАЇНОЗНАВЧИЙ ОСВІТНІЙ ЧИННИК В УМОВАХ СУЧАСНОЇ УКРАЇНСЬКОЇ МАСОВОЇ КУЛЬТУРИ

2019 ◽  
pp. 22-29
Author(s):  
Н. В. Фрадкіна
Keyword(s):  
Mass Culture ◽  
Personal Development ◽  
Negative Impact ◽  
Educational Process ◽  
Point Of View ◽  
Character Trait ◽  
Main Task ◽  
Leading Role ◽  
The Individual

The purpose and tasks of the work are to analyze the contemporary Ukrainian mass culture in terms of its value and humanistic components, as well as the importance of cultural studies and Ukrainian studies in educational disciplines for the formation of a holistic worldview of modern youth.Analysis of research and publications. Scientists repeatedly turned to the problems of the role of spirituality in the formation of society and its culture. This problem is highlighted in the publications by O. Losev, V. Lytvyn, D. Likhachev, S. Avierintsev, M. Zakovych, I. Stepanenko and E. Kostyshyn.Experts see the main negative impact of mass culture on the quality approach, which determines mass culture through the market, because mass culture, from our point of view, is everything that is sold and used in mass demand.One of the most interesting studies on this issue was the work by the representatives of Frankfurt School M. Horkheimer and T. Adorno «Dialectics of Enlightenment» (1947), devoted to a detailed analysis of mass culture. Propaganda at all socio-cultural levels in the form is similar in both totalitarian and democratic countries. It is connected, according to the authors, with the direction of European enlightenment. The tendency to unify people is a manifestation of the influence of mass culture, from cinema to pop. Mass culture is a phenomenon whose existence is associated with commerce (accumulation in any form – this is the main feature of education), in general, the fact that it exists in this form is related to the direction of the history of civilization.Modern mass culture, with its externally attractive and easily assimilated ideas and symbols, appealing to the trends of modern fashion, becomes a standard of prestigious consumption, does not require intense reflection, allows you to relax, distract, not teach, but entertains, preaches hedonism as the main spiritual value. And as a consequence, there are socio-cultural risks: an active rejection of other people, which leads to the formation of indifference; cruelty as a character trait; increase of violent and mercenary crime; increase in the number of alcohol and drug addicts; anti-patriotism; indifference to the values of the family and as a result of social orphanhood and prostitution.Conclusions, perspectives of research. Thus, we can conclude that modern Ukrainian education is predominantly formed by the values of mass culture. Namely, according to the «Dialectic» by Horkheimer and Adorno, «semi-enlightenment becomes an objective spirit» of our modern society.It is concluded that only high-quality education can create the opposite of the onset of mass culture and the destruction of spirituality in our society. It is proved that only by realizing the importance of cultivating disciplines in the educational process and the spiritual upbringing of the nation, through educational reforms, humanitarian knowledge will gradually return to student audiences.Formation of youth occurs under the influence of social environment, culture, education and self-education. The optimal combination of these factors determines both the process of socialization itself and how successful it will be. In this context, one can see the leading role of education and upbringing. It turns out that the main task of modern education is to spread its influence on the development of spiritual culture of the individual, which eventually becomes a solid foundation for the formation of the individual. Such a subject requires both philosophical and humanitarian approaches in further integrated interdisciplinary research, since the availability of such research will provide the theoretical foundation for truly modern educational and personal development.

The role of graining in ensuring food security

2020 ◽  
pp. 75-79
Author(s):  
R. M. Gambarova
Keyword(s):  
Food Security ◽  
Comparative Analysis ◽  
Systems Approach ◽  
Point Of View ◽  
Government Support ◽  
Grain Production ◽  
The Government ◽  
Favorable Conditions ◽  
Grain Farms

Relevance. Grain is the key to strategic products to ensure food security. From this point of view, the creation of large grain farms is a matter for the country's selfsufficiency and it leading to a decrease in financial expense for import. Creation of such farms creates an abundance of productivity from the area and leads to obtaining increased reproductive seeds. The main policy of the government is to minimize dependency from import, create abundance of food and create favorable conditions for export potential.The purpose of the study: the development of grain production in order to ensure food security of the country and strengthen government support for this industry.Methods: comparative analysis, systems approach.Results. As shown in the research, if we pay attention to the activities of private entrepreneurship in the country, we can see result of the implementation of agrarian reforms after which various types of farms have been created in republic.The role of privateentrepreneurshipinthedevelopmentofproduction is great. Тhe article outlines the sowing area, production, productivity, import, export of grain and the level of selfsufficiency in this country from 2015 till 2017.

Tauchnitz for Translators. The Circulation of English-language Literature in Finland

2019 ◽  
Vol 16 (2-3) ◽  
pp. 161-179
Author(s):  
Outi Paloposki
Keyword(s):  
Foreign Language ◽  
English Language ◽  
Book History ◽  
Language Skills ◽  
Point Of View ◽  
Book Production ◽  
German Publisher ◽  
Language Literature ◽  
Selection Of

The article looks at book production and circulation from the point of view of translators, who, as purchasers and readers of foreign-language books, are an important mediating force in the selection of literature for translation. Taking the German publisher Tauchnitz's series ‘Collection of British Authors’ and its circulation in Finland in the nineteenth and early twentieth century as a case in point, the article argues that the increased availability of English-language books facilitated the acquiring and honing of translators' language skills and gradually diminished the need for indirect translating. Book history and translation studies meet here in an examination of the role of the Collection in Finnish translators' work.

Physical capital stock, technological upgrading and modernisation in Hungary

2005 ◽  
Vol 55 (2) ◽  
pp. 201-221 ◽  
Author(s):  
Andrea Szalavetz
Keyword(s):  
Capital Accumulation ◽  
Physical Capital ◽  
Developed Countries ◽  
Point Of View ◽  
Technology Generation ◽  
Development Policies ◽  
Specific Factors ◽  
Physical Capital Accumulation

This paper discusses the relation between the quality and quantity indicators of physical capital and modernisation. While international academic literature emphasises the role of intangible factors enabling technology generation and absorption rather than that of physical capital accumulation, this paper argues that the quantity and quality of physical capital are important modernisation factors, particularly in the case of small, undercapitalised countries that recently integrated into the world economy. The paper shows that in Hungary, as opposed to developed countries, the technological upgrading of capital assets was not necessarily accompanied by the upgrading of human capital i.e. the thesis of capital skill complementarity did not apply to the first decade of transformation and capital accumulation in Hungary. Finally, the paper shows that there are large differences between the average technological levels of individual industries. The dualism of the Hungarian economy, which is also manifest in terms of differences in the size of individual industries' technological gaps, is a disadvantage from the point of view of competitiveness. The increasing differences in the size of the technological gaps can be explained not only with industry-specific factors, but also with the weakness of technology and regional development policies, as well as with institutional deficiencies.

POLIVARIABILITY OF THE BASTARD MOTIF IN THE SHORT STORIES BY GUY DE MAUPASSANT: CHARACTER IN SEARCH OF SELF-IDENTIFICATION

2018 ◽  
pp. 20-27
Author(s):  
Oksana Galchuk
Keyword(s):  
Short Stories ◽  
Short Story ◽  
Social Institutions ◽  
Point Of View ◽  
Guy De Maupassant ◽  
Traditional Values ◽  
The Social ◽  
Role Of It ◽  
Structural Methods

The theme of illegitimacy Guy de Maupassant evolved in his works this article perceives as one of the factors of the author’s concept of a person and the plane of intersection of the most typical motifs of his short stories. The study of the author’s concept of a person through the prism of polivariability of the motif of a bastard is relevant in today’s revision of traditional values, transformation of the usual social institutions and search for identities, etc. The purpose of the study is to give a definition to the existence specifics of the bastard motif in the Maupassant’s short stories by using historical and literary, comparative, structural methods of analysis as dominant. To do this, I analyze the content, variability and the role of this motive in the formation of the Maupassant’s concept of a person, the author’s innovations in its interpretation from the point of view of literary diachrony. Maupassant interprets the bastard motif in the social, psychological and metaphorical-symbolic sense. For the short stories with the presentation of this motif, I suggest the typology based on the role of it in the structure of the work and the ideological and thematic content: the short stories with a motif-fragment, the ones with the bastard’s leitmotif and the group where the bastard motif becomes a central theme. The Maupassant’s interpretation of the bastard motif combines the general tendencies of its existence in the world’s literary tradition and individual reading. The latter is the result of the author’s understanding of the relevant for the era issues: the transformation of the family model, the interest in the theory of heredity, the strengthening of atheistic sentiments, the growth of frustration in the system of traditional social and moral values etc. This study sets the ground for a prospective analysis of the evolution the bastard motif in the short-story collections of different years or a comparative study of the motif in short stories and novels by Maupassant.

KING PEPI’S ROLE IN FORMING MEMPHIS, THE FUTURE CAPITAL OF EGYPT

2020 ◽  
pp. 40-56
Author(s):  
R. A. Orekhov ◽  
Keyword(s):  
Negative Influence ◽  
Common Point ◽  
Point Of View ◽  
High Priest ◽  
Old Kingdom ◽  
The Future ◽  
State Capital

There is a common point of view in Egyptology that Memphis was a state capital since the earliest times and that its protecting gods were Ptah and his spouse Sekhmet. Arguing this concept, the author tries to find the reason why a pyramid city of Pepi I — Mennefer — became a core of the future capital. The main conclusion is following: Constructing his pyramid complex, Pepi I probably included into it a cult center of Habes where Bastet and Imhotep, a high priest of Ra, were worshiped. Imhotep, a companion of the king Djoser, was known as a priest and charmer who tamed the fiery forces of Sirius associated with Bastet, after which the great drought was over. To commemorate this, New Year celebration and the first sun calendar were established. Imhotep’s tomb became an important cult place, where ceremonies important for surviving of the Egyptian state were conducted. In the second half of the Old Kingdom period the Nile started to flood much less, which led to the decline of agriculture. Thus, the role of the cult center of Habes and Imhotep grew greatly. By including Habes, Pepi protected the dominion of his pyramid city from negative influence of Bastet and decreased flooding. The fact that Mennefer was a successor of the aforementioned cult center determined its capital functions in future.

Ч. АЙТМАТОВДУН ЧЫГАРМАЛАРЫНДАГЫ ЖАЛПЫ АДАМЗАТТЫК БААЛУУЛУКТАРДЫН МААНИСИ ЖАНА ЖАШ МУУНДАРДЫ ТАРБИЯЛООДОГУ ОРДУ

2020 ◽  
pp. 164-167
Author(s):  
Айнура Байтокова
Keyword(s):  
Deep Understanding ◽  
Cultural Development ◽  
Point Of View ◽  
Human Values ◽  
Spiritual Values ◽  
Future Teachers ◽  
Youth Education ◽  
Spiritual World ◽  
Universal Values

Аннотация. Макала учурдагы актуалдуу проблемалардын бири болгон жаш муундарда жалпы адамзаттык баалуулуктарды тарбиялоо. Макалада Ч. Айтматовдун чыгармаларындагы баалуулуктардын мааниси жана алардын жаш муундарды тарбиялоодогу орду жөнүндө маселени козгойт. Өзгөчө жаңы социалдык экономикалык өзгөрүүлөр менен жаш муундардын адеп-ахлактык, руханий дүйнөсү өзгөрүүдө. Бул жагдайдан алып караганда коомдун социалдык-маданий жактан андан ары өнүгүүсү үчүн башкы бириктирүүчү факторлордон болуп жаш муундардагы жалпы адамзаттык баалуулуктарды калыптандыруу маселеси биринчи орунга чыгат. Болочок мугалимдердин кесиптик билим алуусунда жалпы адамзаттык баалуулуктарды терең түшүнүүсү, алардын келечектеги кесиптик даярдыгына жардам берет. Демек, аларга жалпы адамзаттык баалуулуктарды сиңирүү абдан маанилүү учур талабы экендигин көрөбүз. Түйүндүү сөздөр: жалпы адамзаттык баалуулуктар, адамгерчилик, адеп-ахлак, руханий баалуулуктар, учурдагы көйгөйлүү маселелер, жаш муундар, базар экономикасы ж.б... Аннотация. В статье затронута одна из актуальных проблем современности – достойное воспитание молодого поколения. Статья рассматривает проблематику воспитания молодежи и формирования общечеловеческих ценностей. В статье речь идет о роли произведений Чингиза Айтматова в воспитании молодежи. В условиях перехода в новый социально-экономический период меняется нравственно-духовный мир молодежи, в том числе у студентов. С этой точки зрения на первый план выходит задача формирования общечеловеческих ценностей, которые должны стать главным объединяющим фактором дальнейшего социокультурного развития общества. Обогащение опыта глубокого понимания общечеловеческих ценностей у будущих педагогов в профессиональном обучении способствует формированию подготовленности будущих педагогов профессионального обучения в будущем, также важно привить в них систему общечеловеческих ценностей. Ключевые слова: общечеловеческие ценности, гуманность, нравственно-этические принципы, духовные ценности, рыночная экономика. Annotation. the article touches on one of the pressing problems of our time - the decent education of the younger generation. The article considers the issues of youth education and the formation of universal values. The article deals with the role of the works of Chingiz Aitmatov in the education of youth. With the transition to a new socio- economic period, the moral and spiritual world of young people is changing, including among students. From this point of view, the task of creating universal human values comes to the forefront, which should become the main unifying factor in the further socio-cultural development of society. The enrichment of the experience of a deep understanding of human values in future teachers contributes to the formation of preparedness of future teachers of vocational training in the future, it is also important to instill in them a system of universal values. Keywords: universal values, humanity, thinker, wise, moral and ethical principles, spiritual values, market economy.

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